//
// Copyright (c) 2004-2024 Jaroslaw Kowalski <jaak@jkowalski.net>, Kim Christensen, Julian Verdurmen
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// * Neither the name of Jaroslaw Kowalski nor the names of its
//   contributors may be used to endorse or promote products derived from this
//   software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//

namespace NLog.Common
{
    /// <summary>
    /// Represents the logging event with asynchronous continuation.
    /// </summary>
    public
#if !NETFRAMEWORK
    readonly
#endif
    struct AsyncLogEventInfo : System.IEquatable<AsyncLogEventInfo>
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="AsyncLogEventInfo"/> struct.
        /// </summary>
        /// <param name="logEvent">The log event.</param>
        /// <param name="continuation">The continuation.</param>
        public AsyncLogEventInfo(LogEventInfo logEvent, AsyncContinuation continuation)
        {
            LogEvent = logEvent;
            Continuation = continuation;
        }

        /// <summary>
        /// Gets the log event.
        /// </summary>
        public LogEventInfo LogEvent { get; }

        /// <summary>
        /// Gets the continuation.
        /// </summary>
        public AsyncContinuation Continuation { get; }

        /// <summary>
        /// Implements the operator ==.
        /// </summary>
        /// <param name="eventInfo1">The event info1.</param>
        /// <param name="eventInfo2">The event info2.</param>
        /// <returns>The result of the operator.</returns>
        public static bool operator ==(AsyncLogEventInfo eventInfo1, AsyncLogEventInfo eventInfo2)
        {
            return eventInfo1.Equals(eventInfo2);
        }

        /// <summary>
        /// Implements the operator ==.
        /// </summary>
        /// <param name="eventInfo1">The event info1.</param>
        /// <param name="eventInfo2">The event info2.</param>
        /// <returns>The result of the operator.</returns>
        public static bool operator !=(AsyncLogEventInfo eventInfo1, AsyncLogEventInfo eventInfo2)
        {
            return !eventInfo1.Equals(eventInfo2);
        }

        /// <inheritdoc/>
        public bool Equals(AsyncLogEventInfo other) => ReferenceEquals(Continuation, other.Continuation) && ReferenceEquals(LogEvent, other.LogEvent);

        /// <inheritdoc/>
        public override bool Equals(object obj) => obj is AsyncLogEventInfo other && Equals(other);

        /// <inheritdoc/>
        public override int GetHashCode()
        {
            return LogEvent.GetHashCode() ^ Continuation.GetHashCode();
        }
    }
}
